C#中WebBroeser控件用法实例教程

.Refresh();//刷新.GoBack();//后退.GoForward();//前进.Navigate(new Uri(address)); //打开链接.Dock = DockStyle.Fill; //完全停靠在父容器中.ScriptErrorsSuppressed = true ; //关闭错误显示Uri a = new Uri(WebBrowser.Document.ActiveElement.GetAttribute("href"));//获取点击中的链接地址

.Navigated += new WebBrowserNavigatedEventHandler(WebBrowser_Navigated);//加载中处理事件.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser _DocumentCompleted);//页面加载完成处理事件.NewWindow += new CancelEventHandler(WebBrowser _NewWindow);//新的窗口中打开页面

// Navigates to the given URL if it is valid.private void Navigate(WebBrowser web,String address){  if (String.IsNullOrEmpty(address)) return;  if (address.Equals("about:blank")) return;  if (!address.StartsWith("http://")) address = "http://" + address;  try  { WebBrowser.Navigate(new Uri(address));      }  catch (System.UriFormatException)  { return;  }  // Updates the URL in TextBoxAddress upon navigation.  private void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)  {   toolStripTextBox1.Text = WebBrowser.Url.ToString();  }}

private void WebBrowser_NewWindow(object sender, CancelEventArgs e){  WebBrowser webb = new WebBrowser();   WebBrowser = WebBrowsers[webtab.SelectedIndex];  webb.Name = "webb" + webtab.TabCount;  Uri a = new Uri(WebBrowser.Document.ActiveElement.GetAttribute("href"));      webb.Url = a;  webb.Dock = DockStyle.Fill;  TabPage p = new TabPage();        p.Controls.Add(webb);  webtab.TabPages.Add(p);  webtab.SelectedTab = p;  webb.NewWindow += new CancelEventHandler(WebBrowser_NewWindow);    e.Cancel = true;//取消在默认浏览器中打开    }

#region 用户自动登陆private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e){   HtmlDocument log_auto = WebBrowser.Document;   HtmlElement log_btn = null;     foreach (HtmlElement em in log_auto.All) //轮循    {       string str = em.Name;       string id = em.Id;       if ((str == "username") || (str == "password") || (str == "submit")) //减少处理       {          switch (str)          {            case "username": em.SetAttribute("value", usernamexml);              break; //赋用户名            case "password": em.SetAttribute("value", userpasswordxml );              break; //赋密码            case "submit": log_btn = em;              break; //获取submit按钮            default:              break;          }        }       }      log_btn.InvokeMember("click"); //触发submit事件            }#endregion